[单选题]
What length of copper wire (resistiv; rvzrzj-htj 1i: -72/oqoc 64tng mef) ,rs3n w+gq qmn87xusl1/jc 8ye/xdqity $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?
A. $16 \; mm$
B. $16 \; cm$
C. $1.6 \; m$
D. $16 \; m$
